ATTEM: An Instrument System Using Transient Electromagnetic Pulse for Subsurface Imaging

Author

Zhong, Wang ; Jun, Lin ; Shengbao, Yu ; Yanju, Ji ; Guohua, Zhou

Author_Institution

Coll. of Instrum. Sci. & Electr. Eng., Jilin Univ., Changchun

fYear

2006

fDate

24-27 April 2006

Firstpage

2231

Lastpage

2235

Abstract

To improve the subsurface imaging capability of transient electromagnetic method, we developed a new instrument system named ATTEM. By removing the primary electromagnetic field from the total electromagnetic field in early stage of transient response, the ATTEM can obtain the pure secondary electromagnetic field, which related to the electrical properties of the subsurface geology. The meaningful improvements in ATTEM comprised two aspects: (1) ATTEM transmitter can record the turn-off current waveform to estimate the primary electromagnetic field. (2) ATTEM receiver adopted double ADCs sampling technique to enlarge the dynamic range of recording and improve the resolution of early transient response

Keywords

buried object detection; electromagnetic fields; electromagnetic pulse; geomagnetism; geophysical equipment; terrestrial electricity; transient response; ATTEM; double ADCs sampling technique; electromagnetic field; subsurface geology; subsurface imaging; transient electromagnetic method; transient electromagnetic pulse; transient response; turn-off current waveform; Delay effects; EMP radiation effects; Electromagnetic fields; Electromagnetic transients; Geology; Instruments; Switches; Transient response; Transmitters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE

Conference_Location

Sorrento

ISSN

1091-5281

Print_ISBN

0-7803-9359-7

Electronic_ISBN

1091-5281

Type

conf

DOI

10.1109/IMTC.2006.328568

Filename

4124756